<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--给按钮添加点击事件 当按钮被点击时，-->
<input type="button" value="自定义" onclick="alert('按钮被点击了')">
<script>console.log("内部引入成功")</script>
<script src="my.js.html"> </script>

</body>
</html>